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Keywords: salt body
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Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594516
... at the Woolsey Mound within the 2000-2003 least three main faults genetically related to an underlying timeframe, with further analysis up to 2014. salt body (Macelloni et al., 2012). The subsurface structural, stratigraphic, thermal, and fluid flow architecture of MC- 118, like that of many regions in the Gulf...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594858
... with a few labelled sections in crossline and/or inline, we employ sequential 2D and pseudo-3D approach to first detect the salt surfaces approximately and then the salt body by using the salt surfaces as source of labels in the complementary depth/time direction, to train another machine which provides high...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583057
... prediction. We therefore conclude that our new method is a viable tool for automated salt delineation from seismic depth images. machine learning deep learning accuracy reservoir characterization upstream oil & gas pseudo label salt body prediction neural network reflection padding salt...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584034
... to the previously processed legacy image. Template-matching full-waveform inversion was used to shape the salt geometry. Gravity-driven modeling was additionally used to validate and optimize the allochthonous salt bodies. Subsequently, common image point tomography iterations and reflection-based fullwaveform...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584006
... Technology. SUMMARY are very successful in salt top recovery, however they fail to recover the bottom of the salt-body and the subsalt due to erroneous velocity es- The seismic imaging and inversion become extremely challenging timations in the vicinity of the salt body. Therefore, some additional when...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584203
... by the exploration geophysics community in recent years, the inversion of salt bodies remains a challenge because of severely limited penetration of seismic waves through them, which obscures the view underneath. Hence, with such scarce information in the seismic data, it becomes imperative to quantify uncertainty...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3592980
... that sub-1.8 Hz surface-wave energy is both strongly coher- highly coherent Scholte-wave propagation that exhibits de ni- ent and exhibits identi able spatially varying characteristics in tive sensitivity to high-contrast salt body boundaries that are the computed VSGs. In particular, after rotating...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426925
... of improving the precision of reconstructed Depth imaging projects dedicated to hydrocarbon subsurface structures. Seismic, electromagnetic (EM) and exploration or field development rely heavily on velocity gravity data can offer complementary sensitivity to model building. When salt bodies are present...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3417484
... on statistical similarity between training data and prediction data, especially where limited training data are available. We propose to use a supervised ML approach that treats each seismic survey independently. In particular, we show that an adaptive U-Net approach yields accurate salt bodies in minutes rather...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3418905
... artificial intelligence seismic data salt body basis function radial basis function bayesian model swi fwi Stochastic full waveform inversion (SWI) of seismic data for FWI starting models Jinsong Chen, Uwe K. Albertin, Kurt Nihei, Sam Kaplan, Michael Hoversten, Lin Zhang, and Dimitri Bevc Chevron...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423283
... We propose a variant of the U-Net neural network, dubbed U-SaltNet, for the task of salt body identification. We have incorporated several existing state-of-the-art modules into our neural network architecture. These modules include scSE, FPA and AG modules, etc. We validate our scheme on real...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426105
... upstream oil & gas interpreter velocity model exploration geophysicist 10 neural network salt flood image salt body seg international exposition seismic image prediction accuracy convolutional layer salt boundary reservoir characterization flood image sediment flood image salt-flood...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428375
... Location: 361F Presentation Type: Oral structural geology salt body artificial intelligence workflow upstream oil & gas tm-fwi exploration geophysicist 10 inversion earth model building case study scenario testing full-waveform inversion seg international exposition reservoir...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426425
... Historically complex salt bodies (e.g. Canopy, Salt Weld…) can introduced serious imaging issues for geophysicists with distorted seismic images both beneath salt body and in the vicinity of the salt flanks or welds (Ian F. Jones, et al., 2014). This is mainly related to absorption...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215236
... for instant identification of small-scale events, to locate the pinch-out positions of formations and the edges of subsurface irregularities, such as edges of salt bodies. With the advent of time, these diffracted waves have been recognized as physically reliable carriers of high-resolution structural imaging...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215296
... Time: 11:25 AM Location: 302B Presentation Type: Oral reservoir characterization fwi tv salt model inversion kalita source wavefield salt body full-waveform inversion flooding upstream oil & gas geophysics gradient regularization frequency seismic data assumption seg...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3208029
... (CSEM) data based on the supervised deep learning (DL) technique for precise salt delineation. CSEM data, which are effective in distinguishing a salt body with high electrical resistivity from the surrounding media, were used as the data of the inversion, and a high-resolution information derived from...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214810
... ABSTRACT We design a deep learning workflow to interactively track seismic geobodies, such as salt bodies and faults. The algorithm is based on a flood-filling network, which performs iterative segmentation and moving the field of view (FoV). Instead of an end-to-end segmentation from...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216633
... ABSTRACT Imaging salt bodies remains a challenge for multiple geophysical methods. To better define a salt body, we require as much information as possible. This leads us to investigate different manners of incorporating such information. We examine multiple methods of constrained inversion...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216676
... ABSTRACT Seismic imaging of the subsalt medium often contains invaluable information that can help locate the reservoir. However, a clear subsalt image highly relies on the accuracy of salt-body and subsalt velocity inversion, because both of them bear the kinematic information of seismic...

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